---
title: Perplexity
sidebarTitle: Perplexity
---

The Perplexity model provides access to Perplexity's language models.

## Parameters

| Parameter    | Type               | Default                        | Description                                                           |
| ------------ | ------------------ | ------------------------------ | --------------------------------------------------------------------- |
| `id`         | `str`              | `"llama-3.1-sonar-small-128k-online"` | The id of the Perplexity model to use                          |
| `name`       | `str`              | `"Perplexity"`                | The name of the model                                                 |
| `provider`   | `str`              | `"Perplexity"`                | The provider of the model                                             |
| `api_key`    | `Optional[str]`    | `None`                         | The API key for Perplexity (defaults to PERPLEXITY_API_KEY env var)  |
| `base_url`   | `str`              | `"https://api.perplexity.ai"` | The base URL for the Perplexity API                                   |

Perplexity extends the OpenAI-compatible interface and supports most parameters from OpenAI.